A printing apparatus has a cartridge carrier and with a locking-and-ejection mechanism. The cartridge carrier has a cavity for insertion of an ink cartridge, and the locking-and-ejection mechanism is arranged on an outside of a side part of a cartridge carrier. This locking-and-ejection mechanism has a locking mechanism with a locking lever biased by a spring force produced by a first spring. The locking lever can be tilted around a rotation axis situated on the outside of the side part. The locking-and-ejection mechanism also has an ejection mechanism with a lifting plate biased by a spring force produced at least by a second spring. The lifting plate is rotatable on the outside of the side part, and the rotation axis of the lifting plate is stationary on the outside of the side part. The locking lever has a first locking mechanism and a second locking mechanism to the lock the first locking mechanism, and an actuator is operable to unlock the locking of the second locking mechanism. The lifting plate is rotatable by a sufficient amount that the locking lever is held in the unlocked position after an ejection of an ink cartridge.